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Aberrant positive affect dynamics in individuals with subthreshold depression: Evidence from laboratory and real-world assessments.
Song, Xiaoqi; Niu, Lijing; Admon, Roee; Long, Jixin; Li, Qian; Peng, Lanxin; Lee, Tatia M C; Zhang, Ruibin.
Afiliación
  • Song X; Cognitive control and Brain Healthy Laboratory, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China.
  • Niu L; Cognitive control and Brain Healthy Laboratory, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China.
  • Admon R; School of Psychological Sciences, University of Haifa, Haifa, Israel.
  • Long J; The Integrated Brain and Behavior Research Center (IBBRC), University of Haifa, Haifa, Israel.
  • Li Q; Cognitive control and Brain Healthy Laboratory, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China.
  • Peng L; Cognitive control and Brain Healthy Laboratory, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China.
  • Lee TMC; Cognitive control and Brain Healthy Laboratory, Department of Psychology, School of Public Health, Southern Medical University, Guangzhou, China.
  • Zhang R; State Key Laboratory of Brain and Cognitive Sciences, The University of Hong Kong, Hong Kong, SAR China.
Int J Clin Health Psychol ; 24(1): 100427, 2024.
Article en En | MEDLINE | ID: mdl-38173985
ABSTRACT
Background/

Objective:

Reduced positive affect (PA) is a core feature of major depressive disorder (MDD). However, the precursor of MDD, subthreshold depression (StD), has received less attention in this regard. Therefore, we examined PA dynamics in StD, integrating laboratory-based and ecological momentary assessment (EMA) approaches.

Method:

Participants were college students recruited from Chinese universities (31 with StD, and 39 healthy controls (HC)). Positive mood was induced in the laboratory by an eight-minute comedy clip used to assess PA reactivity and maintenance. To extend findings to the real world and explore mechanisms of PA maintenance, 53 participants with StD and 64 HC reported their emotional states 14 times daily for one week via EMA. Multilevel models were used to test for predictors of PA inertia.

Results:

In the laboratory, participants with StD achieved the same PA reactivity as HC when facing positive stimuli, yet the curve-fitting revealed difficulties for the StD group in maintaining PA over time. Such reduced capacity was further observed in real-world settings, manifesting in significantly greater PA inertia.

Conclusions:

High PA inertia in daily life may reflect resistance to mood change in StD, explaining anhedonia and difficulties with emotional maintenance, and highlighting the need for early identification.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Int J Clin Health Psychol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: España
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: Int J Clin Health Psychol Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: España